Track obstruction for train-stopping mechanism.



,, Patented Feb. 16, 1915.

Gummy THE NORRIS PETERS C0,, PHOTc-LITHQ. WASHINGTON. D. C.

TRACK DESTRUCTION FOR TRAIN-STOPPING MECHANISM.

Application filed February 3, 1914.

To all whom it may concern Be it known that we, GOLBURN O. DALTON and CHARLES A. HILL, citizens of the United States, residing at Fulton, in the county of Hempstead, State of Arkansas, have invented certain new and useful Improvements in Track ()bstructions for Train- Stopping Mechanism; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in automatic train stops and particularly to a track obstruction for use in connection with the train carried mechanisms described in our copending application filed July 17, 1913 and serially numbered 779,606.

One object of the invention is to provide a simple device which is disposed on a railway adjacent a danger point, such as a drawbridge, and which will be thrown into operative position to actuate train carried mechanisms 'for stopping the train, when the drawbridge is open.

Another object is to provide a device of this character which is not only simple and easy of operation but is comparatively cheap to manufacture, as well as eiiicient in operation.

Other objects and advantages will be apparent from the following description, when taken in connection with the accompanying drawings.

In the drawings: Figure 1 is a side elevation of a portion of a railway and drawbridge showing our invention. Fig. 2 is a top plan view of the same, showing the device in normal position. Fig. 3 is a view similar to Fig. 2 but showing the device in operative position. Fig. 4: is a transverse section on the line 4t of Fig. 2.

Referring particularly to the accompanying drawings, 10 represents the ties and 11 the rails of the railway, while 12 represents a portion of a drawbridge. Mounted on one of the ties outwardly of the outside rail of the railway is a block 13 which carries a horizontally disposed centrally pivoted lever 14. Mounted on another of the ties adjacent the drawbridge is a vertically disposed rack segment 15 which carries pivotally thereon the vertical lever 16. Connected to the lever 16 above and below its pivot are the cords or cables 17, the other ends of these cables being connected respec- Specification of Letters Patent.

Patented Feb. 16, 1915.

Serial No. 816,310.

tively to the lever 14 at opposite sides of this pivot. The lever 16 carries a bolt 18 which engages in a socket member 19 on the drawbridge when the drawbridge is closed and to hold the track obstruction in normal position, as will later appear.

Secured to the base of the rail at a point intermediate the levers 16 and 14 is a clamp 20 to which is secured one end of a longitudinally extending elongated spring bar 21, the normal tendency of which is to move away from the rail. The free end of the bar has an upturned arcuate lug 22, and carried by the block 13 is a vertically extending pin 23 which limits the outward movement of said bar. Secured at its opposite ends respectively to the bar 21 and to the tie is a spring 24 which assists in drawing the bar 21 into normal position away from the rail. Carried by the block 18, and extending over the free end of the bar 21 is an arched guide 25 which holds the bar so that it will positively move in a horizontal plane toward and away from the rail.

A depending pivoted arm 26 is carried by the tender of the train and is provided with a roller 27 at its lower end, this roller being adapted to ride over the arcuate projection of lug 22, to actuate certain mechanisms on the train, the details of which are disclosed in our copending application hereinbefore mentioned but forming no part of this application.

It will thus be seen that to open the drawbridge, it is necessary to throw back the lever 16 to release the bolt from the bridge. In so moving the lever, the lever 14% is turned into a position transversely of the rail so that it engages the free end of the bar 21 and forces the same close to the track. This disposes the arcuate lug 22 in proper line to be engaged by the roller 27, which will actuate the proper mechanism to bring the train to a stop and avoid the plunging of the train through the open bridge. Thus the means for stopping the train is set simultaneously with the opening of the bridge and the production of the point of danger.

WVhat is claimed is:

1. A track obstruction for use in connection with a train carried device comprising a resiliently supported member carried by one of the rails of a railway, an arcuate projection on the free end of the resilient member, means for moving the resilient member toward the rail, and a drawbridge lock operatively connected with the said means to move the resilient member into operative position when the drawbridge lock is unlocked.

2. A track obstruction for use in connection with a train carried device comprising a resiliently supported member carried by one of the rails of a railway, a horizontally disposed and centrally pivoted lever mounted adjacent the free end of the resilient member and adapted for engagement therewith, a drawbridge lock including a lever, flexible connections between the lever and the first lever, a stop for the resilient member, a guide for said member whereby when the lever of the drawbridge lock is moved to unlock the lock the horizontal lever will be moved to throw the resilient member in the position to be engaged by the train carried device.

In testimony whereof, we allix our signatures, in the presence of two witnesses.

GOLBURN O. DALTON. CHARLES A. HILL.

lVitnesses CHAS. ROWLAND, T. J. CARTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

